WO2018102996A1

WO2018102996A1 - Display panel, display apparatus and method for controlling display panel

Info

Publication number: WO2018102996A1
Application number: PCT/CN2016/108745
Authority: WO
Inventors: 罗红磊
Original assignee: 华为技术有限公司
Priority date: 2016-12-06
Filing date: 2016-12-06
Publication date: 2018-06-14
Also published as: CN108401466A; CN108401466B

Abstract

A display panel, a display apparatus and a method for controlling a display panel, which relate to the technical field of display and can improve the display effect of a display panel. The display panel comprises: a first conductive layer (11), an organic electroluminescent layer (12) and a second conductive layer (13), wherein the first conductive layer (11) comprises at least two first electrodes (111), the second conductive layer (13) comprises a second electrode, the at least two first electrodes (111) respectively correspond to at least two display regions of the display panel, each electrode of the at least two first electrodes (111) is respectively connected to a power source (14), and the power source (14) to which each of the first electrodes (111) is connected is a different power source.

Description

Display panel, display device, and display panel control method

Technical field

Embodiments of the present invention relate to the field of display technologies, and in particular, to a display panel, a display device, and a control method of the display panel.

Background technique

With the continuous development of display technology, the use of active matrix organic light emitting diode (AMOLED) display panels is becoming more and more popular.

At present, an AMOLED display panel is usually composed of a plurality of pixel points. Each pixel point includes three sub-pixel points. Each sub-pixel point includes one pixel circuit, and all pixel circuits share an active matrix organic light emitting diode. An anode power supply (hereinafter abbreviated as ELVDD) and an active matrix organic light emitting diode cathode power supply (hereinafter abbreviated as ELVSS). When the AMOLED display panel is displayed, the power consumption P of each sub-pixel is approximately equal to ΔU*I, where ΔU is the difference between the voltage of ELVDD and the voltage of ELVSS, and I is the organic light-emitting diode through the pixel circuit (below The current is simply referred to as OLED). Generally, in order to reduce the power consumption of the AMOLED display panel, the voltage of the ELVDD or the voltage of the ELVSS can be adjusted according to the content of the display screen to reduce the difference between the voltage of the ELVDD and the voltage of the ELVSS, thereby reducing the work of the AMOLED display panel. Consumption.

However, since all sub-pixel circuits included in the AMOLED display panel share ELVDD and ELVSS, the above method of reducing the power consumption of the AMOLED display panel by reducing the difference between the voltage of the ELVDD and the voltage of the ELVSS is due to the voltage and voltage of the ELVDD. The difference in voltage of ELVSS is reduced, which may cause the overall brightness of the AMOLED display panel to be lowered, which affects the display effect of the AMOLED display panel.

Summary of the invention

The present application provides a display panel, a display device, and a control method of the display panel, which can improve the display effect of the display panel.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In a first aspect, a display panel is provided, the display panel comprising a first conductive layer, an organic electroluminescent layer and a second conductive layer, wherein the first conductive layer comprises at least two first electrodes, and the second conductive layer comprises a a second electrode, the at least two first electrodes respectively corresponding to at least two display areas of the display panel, each of the at least two first electrodes being respectively connected to a power source, wherein each of the first electrodes is connected to the power source For different power sources.

The first conductive layer in the display panel provided by the present application may include at least two first electrodes, and each of the at least two first electrodes is respectively connected to one power source, so that the at least two power sources may be respectively The at least two electrodes provide a voltage to achieve independent control of the voltage of at least two of the first conductive layers. That is, the display panel in the embodiment of the present invention can independently control the difference between the voltages of each of the first electrodes in the first conductive layer and the second electrodes of the second conductive layer (ie, independently and at least two first electrodes respectively The voltages of at least two display areas of the corresponding display panel can thus independently control the brightness of each display area in the display panel, thereby improving the display effect of the display panel.

In a first possible implementation manner of the first aspect, the display panel provided by the present application further includes a substrate, wherein a signal line connecting each of the first electrodes and the power source is disposed on the substrate; and the signal line (ie, each of the first electrodes) A signal line connected to the power source is connected to the first electrode through a via.

In the present application, the signal line disposed on the substrate may be connected to the power source through the flexible circuit board. Specifically, since a plurality of signal lines can be packaged in one flexible circuit board under normal circumstances, all signals disposed on the substrate can be disposed. The wires are connected to the corresponding power source through a flexible circuit board (ie, the power source to which the first electrode connected to each signal line needs to be connected). In this way, it is possible to prevent these signal lines from being directly connected to the corresponding power sources, thereby reducing the frame of the display panel.

Optionally, the display panel provided by the embodiment of the present invention is configured to set a signal line that needs to be connected to each of the first electrodes on the substrate, and connect each of the first electrodes to the signal lines through the via holes (each of the first One electrode is directly connected to one signal line), such as This can avoid setting these signal lines in the non-display area on the side of the display panel, so that the frame of the display panel can be reduced.

In a second possible implementation manner of the first aspect, the display panel provided by the present application further includes a pressure sensing touch layer, and each of the first electrodes and the power source connected with the signal line is disposed on the pressure sensing touch layer; A line (a signal line each of which is connected to the power source) is connected to the first electrode through a via.

The display panel provided by the present application can be disposed on the pressure sensing touch layer by using a signal line connected to each of the first electrodes. In this way, the manufacturing process of the display panel provided by the present application can be simplified.

It should be noted that, in order to simplify the manufacturing process of the display panel provided by the present application, the display panel provided by the embodiment of the present invention may be disposed on the pressure sensing touch layer on the signal line connected to each of the first electrodes. The signal lines connected to each of the first electrodes may be disposed on other layers in which the layout of the display panel is relatively small, which is not limited in the present application.

In the display panel provided by the present application, the signal line disposed on the pressure sensing touch layer can be connected to the power source through the flexible circuit board. Specifically, all signal lines disposed on the pressure sensing touch layer may be connected to a corresponding power source through a flexible circuit board (ie, a power source to be connected to the first electrode connected to each signal line). In this way, it is possible to prevent these signal lines from being directly connected to the corresponding power sources, respectively, so that the frame of the display panel can be reduced.

The display panel provided by the present application is configured to dispose a signal line that needs to be connected to each of the first electrodes on the pressure sensing touch layer, and connect each of the first electrodes to the signal lines through the via holes (each first electrode) Each of the signal lines is connected to a non-display area on the side of the display panel by a via hole, respectively, so that the frame of the display panel can be reduced.

In a third possible implementation manner of the first aspect, in the display panel provided by the present application, the at least two first electrodes may be cathode electrodes, and the second electrodes may be anode electrodes; or the at least two One of the electrodes may be an anode conductive layer, and the second electrode may be a cathode conductive layer.

In a second aspect, a display device is provided, comprising the display panel of the first aspect described above and any one of its possible implementations.

For a description of the technical effects of the second aspect, reference may be made to the related description of the technical effects of the first aspect or any possible implementation manner thereof, and details are not described herein again.

In a third aspect, a method for controlling a display panel is provided, the method comprising: determining at least two display areas of image data to be displayed before displaying image data (at least two display areas respectively corresponding to at least two of the display panels) An electrode); and obtaining a maximum grayscale value of the image data corresponding to the first display region (ie, one of the at least two display regions), and then determining an electrode voltage and a mapping curve according to the maximum grayscale value, and The voltage of the first electrode corresponding to the first display area is set as the electrode voltage, and the image data is displayed in the first display area according to the first mapping curve.

In the present application, since the first display area can be understood as any one of the at least two display areas, the display panel can control the first display area by using the control method of the display panel shown in the first aspect. The image data may be displayed, and the image data may be displayed by controlling each of the at least two display areas of the image data to be displayed on the display panel in the same manner as the control method of the display panel shown in the first aspect.

The display panel control method provided by the present application, before displaying the image data, the display panel can determine at least two display areas of the image data to be displayed, and can obtain electrode voltages and mapping curves corresponding to the respective display areas, and then The voltage of the first electrode corresponding to the display area is set to an electrode voltage corresponding to each display area, and image data is displayed in each display area according to a mapping curve corresponding to each display area. In this way, the brightness of each display area in the display panel can be independently controlled, thereby improving the display effect of the display panel.

In a first possible implementation manner of the third aspect, in the control method of the display panel provided by the present application, the electrode voltage and the mapping curve corresponding to the first display area are determined according to the maximum gray level value (also referred to as The method of the second mapping curve may specifically be: determining the electrode voltage according to the maximum grayscale value and the formula; and determining the second mapping curve according to the maximum grayscale value and the preset mapping curve group including the second mapping curve. Specifically, the formula may be V ₁ =V ₀ -(255-M)*V ₀ /255, where V ₁ represents the electrode voltage, V ₀ represents a preset voltage value, and M represents a maximum gray scale value.

In a second possible implementation manner of the third aspect, in the control method of the display panel provided by the present application, the foregoing mapping according to a maximum grayscale value and a preset mapping curve (which may also be referred to as a second mapping curve) is used. The method of determining the second mapping curve may be specifically determining, according to the maximum grayscale value, a first luminance value corresponding to the maximum grayscale value, and according to the first luminance value, in the mapping curve group including the first mapping curve. A mapping curve whose maximum brightness value is the first brightness value is selected as the second mapping curve. Optionally, when there is no mapping curve in the mapping curve group with the maximum brightness value being the first brightness value, the mapping curve with the maximum brightness value closest to the maximum brightness value may be selected as the second mapping curve.

A fourth aspect provides a control method for a display panel, the method comprising: first, when displaying image data, the display panel determines at least two display areas of the image data displayed on the display panel (the at least two display areas respectively correspond to Displaying at least two first electrodes in the panel, and then, when detecting a touch pressure applied to the first display area, acquiring a touch pressure value of the touch pressure, the first display area being at least two display areas a display area, and determining a first electrode voltage according to the touch pressure value, setting a voltage of the first electrode corresponding to the first display area as the first electrode voltage; and acquiring a first gray level value (ie, the first display) The maximum grayscale value of the image data displayed in the area is determined according to the first grayscale value, and the image data is displayed in the first display area according to the first mapping curve.

The control method of the display panel provided by the present application can determine at least two regions of the image data displayed on the display panel when the display panel displays the image data, and when the display panel detects the touch pressure acting on the first display region Obtaining a second electrode voltage corresponding to the first display area and a first mapping curve, and then setting a voltage of the first electrode corresponding to the first display area to a first electrode voltage, and according to the first mapping curve, A display area displays image data, so that the brightness of a certain display area in the display panel can be flexibly controlled independently, thereby further improving the display effect of the display panel.

In a first possible implementation manner of the fourth aspect, in the control method of the display panel provided by the present application, the method for determining the first electrode voltage corresponding to the first display area according to the touch pressure value may be a touch The pressure value and formula are controlled to determine the first electrode voltage. Specifically, the formula may be: V ₁ =V ₀ -V ₀ *F/9.8, where V ₁ represents the electrode voltage, V ₀ represents a preset voltage value, and F represents a touch pressure value.

In a second possible implementation manner of the fourth aspect, in the control method of the display panel provided by the present application, the method for determining the first mapping curve according to the first grayscale value may be based on the first grayscale value and the pre- A set of mapping curves including a first mapping curve is set to determine a first mapping curve.

In a third possible implementation manner of the fourth aspect, in the control method of the display panel provided by the present application, the determining the first mapping according to the first grayscale value and the preset mapping curve group including the first mapping curve The method of the curve may be: determining a first brightness value corresponding to the first gray level value according to the first gray level value, and selecting a maximum brightness in the preset mapping curve group including the first mapping curve according to the first brightness value. A map having a value of the first brightness value is used as the first map curve. Optionally, when there is no mapping curve in the mapping curve group with the maximum brightness value being the first brightness value, the mapping curve with the maximum brightness value closest to the maximum brightness value may be selected as the first mapping curve.

In a fourth possible implementation manner of the fourth aspect, the method for controlling a display panel provided by the present application further includes: determining at least two display areas of the image data to be displayed on the display panel before displaying the image data (at least two The display areas respectively correspond to at least two first electrodes in the display panel, and acquire a second gray scale value (ie, a maximum gray scale value of the image data corresponding to the first display area, wherein the first display area is at least two a display area in the display area), and then determining a second electrode voltage and a second mapping curve according to the second gray scale value, and setting a voltage of the first electrode of the first display area to a second electrode voltage, and according to The second mapping curve displays image data in the first display area.

The display panel control method provided by the present application, the display panel can independently control the display panel to display image data in each display area by the control method of the display panel shown in the fourth possible implementation manner of the fourth aspect, and display Panel adoption The display panel control method shown in the fourth possible implementation manner of the fourth aspect, after the image data is displayed in each display area, the display panel may further control the display panel according to the control method of the display panel shown in the fourth aspect. The image data is displayed on a display area where the touch pressure is detected (for example, the first display area described above). That is, the control method of the display panel provided by the present application can independently control the display panel to display image data in each display area, thereby independently controlling the brightness of each display area in the display panel, thereby improving the display effect of the display panel. Moreover, the control method of the display panel provided by the present application can also separately control the display panel to display image data in a certain display area (specifically, a display area where the touch pressure is detected), thereby flexibly and independently controlling one of the display panels. The brightness of the area can further improve the display effect of the display panel.

In a fifth aspect, a display device is provided, the display device comprising: a determining module, an obtaining module, a control module, and a display module. The determining module is configured to determine at least two display areas of the image data to be displayed before displaying the image data, where the at least two display areas respectively correspond to at least two first electrodes in the display device; and the obtaining module is configured to acquire a display area (one of the at least two display areas) corresponding to the maximum grayscale value of the image data; the determining module is further configured to determine the electrode voltage and the mapping curve according to the maximum grayscale value acquired by the obtaining module; The voltage of the first electrode corresponding to the first display area is set to the electrode voltage determined by the determining module; the display module is configured to display the image data in the first display area according to the mapping curve determined by the determining module.

For a description of the technical effects of the fifth aspect, reference may be made to the related description of the technical effects of the third aspect or any possible implementation manner thereof, and details are not described herein again.

In a sixth aspect, a display device is provided, the display device comprising: a determining module, an obtaining module, a control module, and a display module. The determining module is configured to: when displaying the image data, determine at least two display areas of the image data displayed on the display panel, the at least two display areas respectively corresponding to at least two first electrodes in the display device; the obtaining module is configured to: When it is detected that one of the at least two display areas is applied to the first display area The touch pressure value of the touch pressure is obtained by the touch pressure of the display area; the determining module is further configured to determine the first electrode voltage according to the touch pressure value acquired by the acquisition module; the control module is configured to be used with the first display The voltage of the first electrode corresponding to the region is set to determine the first electrode voltage determined by the module; the acquiring module is further configured to obtain a first grayscale value, where the first grayscale value is a maximum grayscale value of the image data displayed by the first display region. The determining module is further configured to determine the first mapping curve according to the first grayscale value acquired by the obtaining module; the display module is further configured to display the image data in the first display area according to the first mapping curve determined by the determining module.

In a first possible implementation manner of the sixth aspect, the determining module is further configured to: before displaying the image data, determining at least two display areas of the image data to be displayed on the display device, and at least two display areas respectively corresponding to the display At least two first electrodes in the device; the acquiring module is further configured to acquire a second grayscale value, where the second grayscale value is a maximum grayscale value of the image data corresponding to the first display region, where the first display region is at least a display area of the two display areas; the determining module is further configured to determine a second electrode voltage and a second mapping curve according to the second gray level value acquired by the obtaining module; the control module is further configured to correspond to the first display area The voltage of the first electrode is set to the second electrode voltage; the display module is further configured to display the image data in the first display area according to the second mapping curve determined by the determining module.

For a description of the technical effects of the sixth aspect or any of the possible implementations, refer to the related description of the technical effects of the fourth aspect or any possible implementation manner thereof, and details are not described herein again.

According to a seventh aspect, a display panel (or display device) is provided, the display panel includes a processor and a memory; wherein the memory is configured to store a computer execution instruction, and when the display panel is in operation, the processor executes a computer-executed instruction stored in the memory, The display panel control method according to the above third aspect or any one of the possible implementation manners thereof, and the fourth aspect or any one of the possible implementation manners described above.

In an eighth aspect, a computer readable storage medium is provided, the computer readable storage medium storing one or more programs, the one or more programs including computer execution instructions, when the processor of the display panel (or display device) executes the When the computer executes the instruction, The display panel performs the above third aspect or any possible implementation thereof, and the control method of the display panel described in the above fourth aspect or any possible implementation manner thereof.

For a description of the technical effects of the seventh aspect and the eighth aspect, reference may be made to the related description of the technical effect of the third aspect or any one of the possible implementation manners and the foregoing fourth aspect or any one of the possible implementation manners. , will not repeat them here.

In the embodiment of the present invention, at least two first electrodes are respectively disposed on the conductive layer, and the at least two first electrodes respectively correspond to at least two display areas of the display panel, and the power supply of the at least two electrodes is independently controlled to realize independent control of the display panel. The brightness of at least two of the display areas can improve the display effect of the display panel.

DRAWINGS

1 is a schematic diagram of a first structure of a display panel according to an embodiment of the present invention;

2 is a schematic diagram of a second structure of a display panel according to an embodiment of the present invention;

3 is a schematic diagram of a third structure of a display panel according to an embodiment of the present invention;

4 is a schematic diagram of a fourth structure of a display panel according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a fifth display panel according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a sixth display panel according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a seventh display panel according to an embodiment of the present disclosure;

8 is a schematic structural diagram of an eighth structure of a display panel according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of a first control method of a display panel according to an embodiment of the present invention; FIG.

FIG. 10 is a schematic diagram of a mapping curve group of a mapping relationship between gray scale values and luminance values according to an embodiment of the present invention; FIG.

FIG. 11 is a schematic diagram of a second control method of a display panel according to an embodiment of the present invention; FIG.

FIG. 12 is a schematic diagram of a third control method of a display panel according to an embodiment of the present invention; FIG.

FIG. 13 is a schematic diagram of a first structure of a display device according to an embodiment of the present invention; FIG.

FIG. 14 is a schematic diagram of a second structure of a display device according to an embodiment of the present invention.

detailed description

The terms "first" and "second" and the like in the embodiments of the present invention are used to distinguish different objects, rather than to describe a specific order of the objects. For example, the first conductive layer and the second conductive layer and the like are used to distinguish different conductive layers, rather than to describe a specific order of the conductive layers.

In the embodiments of the present invention, the words "exemplary" or "such as" are used to mean an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the invention should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the words "exemplary" or "such as" is intended to present the concepts in a particular manner.

The technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments.

In the prior art, since all sub-pixel circuits included in the display panel share ELVDD and ELVSS, the method of reducing the difference between the voltage of ELVDD and the voltage of ELVSS is used to reduce the power consumption of the display panel due to ELVDD. The difference between the voltage and the voltage of the ELVSS is reduced, which may cause the overall brightness of the display panel to be lowered, affecting the display effect of the display panel.

In order to solve the above problems, embodiments of the present invention provide a display panel, a display device (the display device includes a display panel), and a control method of the display panel, which can independently control brightness of each display area in the display panel, thereby improving the display panel. The display effect. Specifically, the display panel, the display device, and the control method of the display panel provided by the embodiments of the present invention will be described in detail in the following embodiments.

The display device provided by the embodiment of the present invention may be a product having a display function such as a television, a mobile phone, or a tablet computer. The display panel provided by the embodiment of the invention can be applied to a product having a display function, such as a television, a mobile phone, or a tablet computer. Optionally, the display panel in the embodiment of the present invention may be an AMOLED display panel.

The main elements involved in the embodiments of the present invention and the various figures are first described below:

11: a first conductive layer; 12: an organic electroluminescent layer; 13: a second conductive layer; 14: Power supply; 15: signal line; 16: substrate; 17: via; 18: first insulating layer between the second conductive layer 13 and the substrate 16; 19: pressure-sensitive touch layer; 20: adjacent two first a second insulating layer between the electrodes 111; 111: a first electrode.

The embodiment of the invention provides a display panel. As shown in FIG. 1 , the display panel comprises a first conductive layer 11 , an organic electroluminescent layer 12 and a second conductive layer 13 . The first conductive layer 11 includes at least two first electrodes 111, and the second conductive layer includes a second electrode, and the at least two first electrodes 111 respectively correspond to at least two display areas of the display panel, the at least two Each of the electrodes 111 is connected to a power source 14 respectively. The power source 14 connected to each of the first electrodes 111 may be a different power source, or may be the same power source, or at least two first electrodes 111 may be connected. The power supply 14 is a different power source.

Illustratively, FIG. 1 is an example for the example in which the organic electroluminescent layer 12 is disposed between the first conductive layer 11 and the second conductive layer 13. It can be understood that the first conductive layer 11 in FIG. The position with the second conductive layer 13 can be interchanged.

Optionally, each of the at least two first electrodes 111 (ie, each of the first electrodes) shown in FIG. 1 may be connected to a power source 14 through a signal line 15 respectively.

In the embodiment of the present invention, the signal line may be electrically conductive. Specifically, the signal line in the embodiment of the present invention may be made of a metal material. For example, the signal line may be a copper wire made of copper.

Optionally, the at least two first electrodes respectively correspond to at least two display areas of the display panel, and the number of the first electrodes is the same as the number of the display areas of the display panel, and the at least two first electrodes are Each of the electrodes is in one-to-one correspondence with each of the at least two display areas of the display panel.

It should be noted that, in the embodiment of the present invention, each of the first electrodes (at least two first electrodes) included in the first conductive layer is non-conductive, and thus each of the first electrodes included in the first conductive layer It can be insulated between the two. For example, an insulating layer may be disposed between two adjacent first electrodes.

Optionally, the first conductive layer and the second conductive layer in the embodiment of the present invention may be A light-transmissive conductive film formed by depositing a material such as indium tin oxide (ITO) or graphene.

Optionally, the first electrode and the second electrode in the embodiment of the present invention can be realized by performing a patterning process (for example, exposure, development, etching, peeling, etc.) on the conductive film that can transmit light.

Optionally, since the first conductive layer, the second conductive layer, and the organic electroluminescent layer are generally deposited on a substrate (for example, a glass substrate), by way of example, in conjunction with FIG. The display panel may further include a substrate 16, and the second conductive layer 13, the organic electroluminescent layer 12, and the first conductive layer 11 are sequentially deposited on one side of the substrate 16.

In the display panel provided by the embodiment of the present invention, the first conductive layer may include at least two first electrodes, and each of the at least two first electrodes is respectively connected to one power source, and thus may be respectively separated by at least two power sources. A voltage is applied to the at least two electrodes to achieve independent control of the voltage of at least two of the first conductive layers. That is, the display panel in the embodiment of the present invention can independently control the difference in voltage between each of the first conductive layer and the second electrode of the second conductive layer (the second conductive layer includes a second electrode) The value (ie, the voltage of at least two display areas of the display panel corresponding to the at least two first electrodes is independently controlled), so that the brightness of each display area in the display panel can be independently controlled, so that the display effect of the display panel can be improved.

Optionally, in conjunction with FIG. 1, as shown in FIG. 3, the display panel further includes a substrate 16, and each of the first electrodes 111 is connected to the power source 14 with a signal line 15 disposed on the substrate 16. The signal line 15 passes through the vias 17 and An electrode 111 is connected.

Exemplarily, as shown in FIG. 3, the display panel further includes a first insulating layer 18 and a second insulating layer 20, the first insulating layer 18 is disposed between the second conductive layer 13 and the substrate 14; and the second insulating layer 20 It is disposed between any two adjacent first electrodes 111. The signal line 15 is connected to the first conductive layer 111 through the hole 17, and the via 17 penetrates through the organic electroluminescent layer 12, the second conductive layer 13, and the first insulating layer 18.

The via hole in the embodiment of the present invention can be realized by providing a via hole and depositing a layer of metal on the inner wall of the via hole.

In the embodiment of the present invention, since the via hole and the second conductive layer may be misdirected, an insulation process may be required between the via hole and the second conductive layer, for example, an insulation is provided between the via hole and the second conductive layer. Layer to avoid mis-conduction of the via and the second conductive layer.

In the embodiment of the present invention, the signal line is connected to the first electrode through the via hole. It can be understood that each of the first electrodes in the first conductive layer is respectively connected to one signal line through one via hole.

It should be noted that, in the display panel provided by the embodiment of the present invention, the first conductive layer may include at least two first electrodes, and each of the first conductive layers passes through a via and a signal respectively. Wire connection, so in the actual case, the first conductive layer 11 in FIG. 3 may include at least two first electrodes 111, at least two signal lines 15 may be disposed on the substrate 16, and at least two may be disposed in FIG. Hole 17. However, since each of the first electrodes 111 is connected to one signal line 15 through a via hole 17 in the same manner, in FIG. 3, only three first electrodes are respectively exemplarily shown through one via hole. 17 is connected to a signal line 15 . For the structure in which the other first electrodes 111 are respectively connected to one signal line 15 through a via 17 , the first electrode 111 shown in FIG. 3 can be passed through a via. 17 is connected to a signal line 15 and will not be described in detail herein.

Optionally, in conjunction with FIG. 2, as shown in FIG. 4, a signal line 15 connected to each of the first electrodes 111 and the power source 14 is disposed on the substrate 16, and the signal line 15 may be directly connected to the first electrode 111 (it may be understood as Each of the first electrodes 111 in a conductive layer 11 may be directly connected to one signal line 15). Wherein, in the display panel shown in FIG. 4, a second insulating layer 20 is further disposed between any two adjacent first electrodes 111.

It should be noted that, in FIG. 4, only three first electrodes are directly connected to one signal line 15 , and the other first electrodes 111 respectively pass through a via 17 and a signal. For the structure in which the wires 15 are connected, a structure in which the first electrodes 111 shown in FIG. 4 are connected to one signal line 15 through a via hole 17 can be referred to, and will not be described in detail herein.

In the embodiment of the present invention, the signal line disposed on the substrate may be connected to the power source through the flexible circuit board, specifically, because a flexible circuit board can be sealed under normal circumstances. A plurality of signal lines are mounted, so that all signal lines disposed on the substrate can be connected to a corresponding power source through a flexible circuit board (ie, a power source to be connected to the first electrode connected to each signal line). In this way, it is possible to prevent these signal lines from being directly connected to the corresponding power sources, respectively, so that the frame of the display panel can be reduced.

Optionally, the display panel provided by the embodiment of the present invention is configured by disposing a signal line that needs to be connected to each of the first electrodes on the substrate, and connecting each of the first electrodes to the signal lines through the via holes or directly The first electrodes are directly connected to one signal line, respectively, so that the signal lines can be prevented from being disposed in the non-display area on the side of the display panel, so that the frame of the display panel can be reduced.

Optionally, the display panel provided by the embodiment of the invention further includes a pressure sensing touch layer, wherein each of the first electrodes is connected to the power source and the signal line is disposed on the pressure sensing touch layer, and the signal line is connected to the first electrode through the via hole. .

For example, in conjunction with FIG. 2, as shown in FIG. 5, the pressure sensing touch layer 19 is disposed on the other side of the substrate 16, wherein each of the first electrodes 111 and the power source connected signal line 15 are disposed on the pressure sensing touch layer. 19, the signal line 15 is connected to the first electrode through the via 17 (it can be understood that each of the first electrodes 111 in the first conductive layer 11 is connected to a signal line 15 through a via 17 respectively), the via 17 Through the substrate 16. Wherein, in the display panel shown in FIG. 5, a second insulating layer 20 is further disposed between any two adjacent first electrodes 111.

It should be noted that, in FIG. 5, only three first electrodes 111 are respectively connected to one signal line 15 through one via hole 17, and the other first electrodes 111 respectively pass through one via hole. For the structure of the connection with a signal line 15, the structure of the first electrode 111 shown in FIG. 5 is connected to a signal line 15 through a via 17 and will not be described in detail herein.

Except for FIG. 2, as shown in FIG. 6, the pressure sensing touch layer 19 is disposed on the other side of the substrate 16, wherein each of the first electrodes 111 and the power source connected with the signal line 15 is disposed on the pressure sensing touch layer. On the 19th, the signal line 15 is connected to a signal line 15 through the via hole 17, and the via hole 17 penetrates the organic electroluminescent layer 12, the second conductive layer 13, and the substrate 16. Wherein, in the display panel shown in FIG. 6, any two adjacent first electrodes 111 A second insulating layer 20 is also disposed between.

It should be noted that, in FIG. 6 , only the three first electrodes 111 are respectively connected to one signal line 15 through one via hole 17 , and the other first electrodes 111 respectively pass through one via hole. The structure of the connection with a signal line 15 can be specifically referred to the structure in which the first electrode 111 shown in FIG. 6 is connected to a signal line 15 through a via 17 and will not be described in detail herein.

Exemplarily, in conjunction with FIG. 2, as shown in FIG. 7, the pressure-sensitive touch layer 19 is disposed on one side of the second conductive layer 13 (ie, the side opposite to the organic electroluminescent layer 12 in FIG. 7). A signal line 15 to which an electrode 111 is connected to a power source is disposed on the pressure sensing touch layer 19. Each of the first electrodes 111 is connected to a signal line 15 through the via 17 , and the via 17 penetrates through the pressure sensing touch layer 19 , the second conductive layer 13 , and the organic electroluminescent layer 12 . Wherein, in the display panel shown in FIG. 6, a second insulating layer 20 is further disposed between any two adjacent first electrodes 111.

It should be noted that, in FIG. 7 , only the three first electrodes 111 are respectively connected to one signal line 15 through one via hole 17 , and the other first electrodes 111 respectively pass through one via hole. For the structure connected to a signal line 15, the structure of the first electrode 111 shown in FIG. 7 is connected to a signal line 15 through a via 17 and will not be described in detail herein.

Exemplarily, in conjunction with FIG. 2, as shown in FIG. 8, the pressure-sensitive touch layer 19 is disposed on one side of the first conductive layer 11 (ie, the side opposite to the organic electroluminescent layer 12 in FIG. 8). A signal line 15 to which an electrode 111 is connected to a power source is disposed on the pressure sensing touch layer 19. Each of the first electrodes 111 is connected to a signal line 15 through a via 17 , and the via 17 penetrates through the pressure sensing touch layer 19 . Wherein, in the display panel shown in FIG. 8, a second insulating layer 20 is further disposed between any two adjacent first electrodes 111.

It should be noted that, in FIG. 8 , only the three first electrodes 111 are respectively connected to one signal line 15 through one via hole 17 , and the other first electrodes 111 respectively pass through one via hole. For the structure of the connection with a signal line 15, the structure of the first electrode 111 shown in FIG. 8 is connected to a signal line 15 through a via 17 and will not be described in detail herein.

The display panel provided by the embodiment of the present invention can be disposed on the pressure sensing touch layer by using a signal line connected to each of the first electrodes. Thus, the manufacturing process of the display panel provided by the embodiment of the present invention can be simplified.

It should be noted that, in order to simplify the manufacturing process of the display panel provided by the embodiment of the present invention, the display panel provided by the embodiment of the present invention may be disposed on the pressure sensing touch layer on the signal line connected to each of the first electrodes. The signal lines connected to each of the first electrodes are also disposed on other layers in which the layout of the display panel is relatively small, which is not limited in the embodiment of the present invention.

Optionally, in the display panel provided by the embodiment of the invention, the signal line disposed on the pressure sensing touch layer may be connected to the power source through the flexible circuit board. Specifically, all signal lines disposed on the pressure sensing touch layer may be connected to a corresponding power source through a flexible circuit board (ie, a power source to be connected to the first electrode connected to each signal line). In this way, it is possible to prevent these signal lines from being directly connected to the corresponding power sources, respectively, so that the frame of the display panel can be reduced.

Optionally, the display panel provided by the embodiment of the present invention is configured to set a signal line that needs to be connected to each of the first electrodes on the pressure sensing touch layer, and connect each of the first electrodes to the signal lines through the via holes. (Each first electrode is connected to one signal line through a via hole, respectively), so that the signal lines can be prevented from being disposed in the non-display area on the side of the display panel, so that the frame of the display panel can be reduced.

Because of the display panel shown in FIG. 7 and FIG. 8, compared with the display panel shown in FIG. 5 and FIG. 6, it is possible to avoid providing a via hole on the substrate (usually provided with a pixel circuit on the substrate), thereby being able to avoid the substrate. The pixel circuit has an effect.

Optionally, in the embodiment of the present invention, at least two of the first conductive layers in the display panel shown in FIG. 1 to FIG. 8 may be cathode electrodes, and the second electrode in the second conductive layer may be The anode electrode, that is, the first conductive layer may be a cathode conductive layer, and the second conductive layer may be an anode conductive layer.

Optionally, in the embodiment of the present invention, at least two first electrodes in the first conductive layer in the display panel as shown in FIG. 1 to FIG. 8 may be an anode electrode, and the second conductive layer The second electrode may be a cathode electrode, that is, the first conductive layer may be an anode conductive layer, and the second conductive layer may be a cathode conductive layer.

It should be noted that, in the specific implementation manner of the substrate 16 in any one of the display panels shown in FIG. 1 to FIG. 8 , reference may be made to a specific implementation manner of the substrate in the conventional display panel, which is not in the embodiment of the present invention. Let me repeat.

The display panel provided by the embodiment of the invention includes a first conductive layer, an organic electroluminescent layer and a second conductive layer, the first conductive layer includes at least two first electrodes, and the second conductive layer includes a second electrode, The at least two first electrodes respectively correspond to at least two display areas of the display panel, and each of the at least two first electrodes is respectively connected to a power source, wherein the power source connected to each of the first electrodes is a different power source. Since the first conductive layer may include at least two first electrodes, and each of the at least two first electrodes is respectively connected to one power source, voltages may be respectively supplied to the at least two electrodes by at least two power sources, To achieve independent control of the voltage of at least two of the first electrodes in the first conductive layer. That is, the display panel in the embodiment of the present invention can independently control the difference between the voltage between each of the first conductive layer and the second electrode of the second conductive layer (ie, independent control and at least two first The electrodes respectively correspond to voltages of at least two display areas of the display panel, so that the brightness of each display area in the display panel can be independently controlled, so that the display effect of the display panel can be improved.

The embodiment of the invention provides a display device, which may include any one of the display panels shown in FIG. 1 to FIG. 8 in the above embodiment. Specifically, for the description of the structure, the function, the working principle, and the like of the display panel in the display device, refer to the structure, function and working principle of the display panel of any of the display panels shown in FIG. 1 to FIG. Related descriptions, etc., will not be described here.

The display device provided by the embodiment of the present invention may be a display panel (such as any one of the display panels shown in FIG. 1 to FIG. 8 in the above embodiment) or a display device, and the display device may be a television or a mobile phone. A product with a display function such as a tablet computer.

The display device provided by the embodiment of the invention includes a display panel, wherein the first electrode in the display panel includes at least two first electrodes, and the at least two first electrodes Each of the electrodes is respectively connected to a power source, so that voltages can be respectively supplied to the at least two electrodes by at least two power sources to achieve independent control of voltages of at least two of the first electrodes in the first conductive layer. That is, the display panel in the embodiment of the present invention can independently control the difference in voltage between each of the first conductive layer and the second electrode of the second conductive layer (the second conductive layer includes a second electrode) a value (ie, independently controlling voltages of at least two display areas of the display panel respectively corresponding to the at least two first electrodes), so that the brightness of each display area (each area corresponding to one first electrode) in the display panel can be independently controlled , which can improve the display effect of the display panel. That is, the display effect of the display device is improved.

An embodiment of the present invention provides a control method of a display panel. The execution body of the control method of the display panel may be a display panel, a display device, or a display driver chip integrated in a display panel or a display device. Specifically, the execution main body of the control method of the display panel provided by the embodiment of the present invention is exemplified as a display panel.

As shown in FIG. 9 , an embodiment of the present invention provides a control method for a display panel. The method can be applied to any one of the display panels provided in FIG. 1 to FIG. 8 before the display panel displays image data. The method includes:

S101. The display panel determines at least two display areas of the image data to be displayed.

The at least two display areas respectively correspond to at least two first electrodes in the display panel. Illustratively, when the display panel is any one of the display panels provided in FIG. 1 to FIG. 8 of the embodiment of the present invention, At least two display areas of the image data to be displayed on the display panel correspond to at least two first electrodes on the first conductive layer in the display panel, that is, the number of display areas of the image data to be displayed on the display panel and the display panel The number of the first electrodes on the first conductive layer is the same, and the at least two display areas of the image data to be displayed on the display panel are in one-to-one correspondence with the at least two first electrodes on the first conductive layer in the display panel.

S102. The display panel acquires a maximum grayscale value of the image data corresponding to the first display area.

Wherein the first display area is one of the at least two display areas described above Show area. Optionally, in the embodiment of the present invention, the display panel can acquire all the grayscale values of the image data corresponding to the first display area, and then the display panel obtains the maximum grayscale value from all the grayscale values of the image data. In the embodiment of the present invention, the maximum grayscale value of the image data corresponding to the first display area may also be referred to as a second grayscale value.

S103. The display panel determines an electrode voltage and a mapping curve according to the maximum grayscale value.

Optionally, in the embodiment of the present invention, the display panel may determine an electrode voltage (herein referred to as a second electrode voltage) according to the maximum grayscale value (herein referred to as a second grayscale value) and a formula. The formula can be expressed as: V ₁ =V ₀ -(255-M)*V ₀ /255. Wherein V ₁ represents the electrode voltage, V ₀ represents a preset voltage value, and M represents a maximum gray scale value.

Illustratively, the above display panel is any one of the display panels provided in FIG. 1 to FIG. 8 of the embodiment of the present invention, and at least two first electrodes in the display panel provided by the embodiment of the present invention are cathode electrodes. In the case where the second electrode is an anode electrode, V ₀ can be preset to a minimum value of ELVSS under normal conditions, for example: -4.4 V, and a specific experiment can determine the specific value of V ₀ by a limited number of experiments. -4.4V is only an example and does not constitute a limitation on the value of V ₀ . In this case, the above formula can be specifically expressed as: V ₁ = - [4.4 - (255 - M) * 4.4 / 255]. Then, the display panel may be acquired in S102 as the maximum value of M gray level value, substituted into the equation to obtain a value of V _1. For example, when the maximum grayscale value obtained by the display panel in S102 is 200 (ie, M=200), V ₁ =−[4.4-(255-200)*4.4/255], that is, V _{1 is} approximately equal to -3.45V.

Illustratively, the above display panel is any one of the display panels provided in FIG. 1 to FIG. 8 of the embodiment of the present invention, and at least two first electrodes in the display panel provided by the embodiments of the present invention are anode electrodes. , where the second electrode is a cathode electrode, may be preset to the maximum value V ₀ ELVDD is usually, for example: 4.6V, those skilled in the art can determine V ₀ by a limited number of specific experimental value, 4.6 V is only an example and does not constitute a limitation on the value of V ₀ . In this case, the above formula can be specifically expressed as: V ₁ = 4.6 - (255 - M) * 4.6 / 255. Then, the display panel may be acquired in S102 as the maximum value of M gray level value, substituted into the equation to obtain a value of V _1. For example, when the maximum gray S102, the display panel 200 is determined at the time (i.e., _{M = 200), V 1 =} 4.6- (255-200) * 4.6 / 255, i.e., V ₁ is approximately equal to 3.60V.

Optionally, in the embodiment of the present invention, the display panel may determine a mapping curve (herein referred to as a second mapping curve) according to the maximum grayscale value and a preset mapping curve group, where the mapping curve group includes multiple mappings. The curve includes a second mapping curve among the plurality of mapping curves. The plurality of mapping curves in the mapping curve group are respectively different voltage difference values (the difference between the voltage of ELVDD and the voltage of ELVSS in the display panel), and the mapping relationship between the grayscale value and the luminance value when the display panel performs display. Specifically, in the embodiment of the present invention, the method for determining the second mapping curve by the display panel according to the maximum grayscale value and the preset mapping curve group may be implemented by using S103a and S103b described below.

S103a. The display panel determines, according to the maximum grayscale value, a first brightness value corresponding to the maximum grayscale value.

S103b. The display panel selects, as the second mapping curve, a mapping curve of the maximum brightness value as the first brightness value in the mapping curve group according to the first brightness value.

Optionally, when there is no mapping curve in the mapping curve group with the maximum brightness value being the first brightness value, the mapping curve with the maximum brightness value closest to the maximum brightness value may be selected as the second mapping curve.

For example, as shown in FIG. 10 , taking the mapping curve 1 and the mapping curve 2 in the preset mapping curve group as an example, if the mapping curve 1 is displayed in the normal display panel, the brightness value and the gray value in the display panel are displayed. The mapping curve of the order value. When the maximum grayscale value of the image data corresponding to the first display area obtained by the display panel is 180, first, when the grayscale value is 180 according to the mapping curve 1, the corresponding luminance value is 270 nits. Then, the map 2 having the maximum luminance value of 270 nit (the first luminance value) is selected as the second mapping curve. Wherein, when there is no mapping curve with a maximum brightness value of 270 nit in the mapping curve group, a mapping curve with a maximum brightness value closest to 270 nit may be selected as the second mapping curve.

S104. The display panel sets a voltage of the first electrode corresponding to the first display area to the electrode voltage.

Illustratively, when the display panel is any one of the display panels provided in FIG. 1 to FIG. 8 , the display panel can set the voltage of the first electrode corresponding to the first display area to Electrode voltage, that is, the electrode voltage is supplied And supplying a power source connected to the first electrode corresponding to the first display area in the display panel such that the power source can supply the electrode voltage to the first electrode corresponding to the first display area.

S105. The display panel displays the image data in the first display area according to the mapping curve.

The display panel can display image data in the first display area according to the mapping relationship between the grayscale value and the brightness value represented by the mapping curve. Specifically, the display panel displays the grayscale value and the brightness value according to the mapping curve. The mapping relationship, the specific method for displaying the image data in the first display area and the mapping relationship between the grayscale value and the brightness value in the prior art, the method for displaying the image data is the same, and the grayscale value represented by the display panel according to the mapping curve For the specific method of displaying the image data in the first display area, the method for displaying the image data according to the mapping relationship between the grayscale value and the luminance value in the prior art can be referred to in the prior art.

It should be noted that, in the embodiment of the present invention, the foregoing S102-S105 is only one display area of at least two display areas of the image data to be displayed on the display panel, that is, the first display area is taken as an example to provide an embodiment of the present invention. The control method of the display panel is exemplified. And the display panel can be used to control at least one of the at least two display areas. Image data is displayed for each of the two display areas.

The display panel control method provided by the embodiment of the present invention, before displaying the image data, the display panel can determine at least two display areas of the image data to be displayed, and can obtain electrode voltages and mapping curves corresponding to the respective display areas, and then The voltages of the first electrodes corresponding to the respective display regions are set to the electrode voltages corresponding to the respective display regions, and the image data is displayed in the respective display regions in accordance with the mapping curves corresponding to the respective display regions. In this way, the brightness of each display area in the display panel can be independently controlled, thereby improving the display effect of the display panel.

As shown in FIG. 11 , an embodiment of the present invention provides a control method for a display panel. The method can be applied to any one of the display panels provided in FIG. 1 to FIG. 8 . When the display panel displays image data, The method includes:

S201. The display panel determines at least two display areas of the image data displayed on the display panel.

The at least two display areas respectively correspond to at least two first electrodes in the display panel. Illustratively, when the display panel is any one of the display panels provided in FIG. 1 to FIG. 8 of the embodiment of the present invention, at least two display areas displayed on the display panel and the first conductive layer in the display panel The at least two first electrodes correspond to each other, that is, the number of display areas on the display panel displaying the image data is the same as the number of the first electrodes on the first conductive layer in the display panel, and at least two of the image data are displayed on the display panel. The display area is in one-to-one correspondence with at least two first electrodes on the first conductive layer in the display panel.

S202. When the display panel detects the touch pressure applied to the first display area, the display panel acquires the touch pressure value of the touch pressure.

The first display area is one of the at least two display areas. Exemplarily, the first display area may be a display area touched in at least two display areas displayed on the display panel.

Optionally, the touch pressure applied to the first display area may be a touch pressure when the user touches the display panel, and may also be a touch pressure when the display panel is touched by other methods. The actual use requirement is determined, and the embodiment of the present invention is not limited.

Optionally, in the embodiment of the present invention, the touch pressure value may be acquired by a pressure sensing touch layer in the display panel.

S203. The display panel determines the first electrode voltage according to the touch pressure value.

Optionally, in the embodiment of the present invention, the display panel may determine the first electrode voltage corresponding to the first region according to the touch pressure value and the formula. The formula may be expressed as _{_{_{specifically: V 1 = V 0 -V 0}}} * F / 9.8. Wherein, V ₁ represents a first electrode voltage, V ₀ represents a preset voltage value, and F represents a touch pressure value.

Illustratively, the above display panel is any one of the display panels provided in FIG. 1 to FIG. 8 of the embodiment of the present invention, and at least two first electrodes in the display panel provided by the embodiment of the present invention are cathode electrodes. In the case where the second electrode is an anode electrode, V ₀ can be preset to a minimum value of ELVSS under normal conditions, for example, -4.4 V, and a person skilled in the art can determine the specific value of V ₀ by a limited number of experiments, - 4.4V is only an example and does not constitute a limitation on the value of V ₀ . In this case, the above formula can be specifically expressed as: V ₁ = - [4.4 - 4.4 * F / 9.8]. Then, the display panel may be acquired in S203 touch pressure value as the value of F, substituting into the equation to obtain a value of V _1. For example, when the touch pressure value obtained by the display panel in S203 is 6 Newtons (ie, F=6), V ₁ =−[4.4-4.4*6/9.8], that is, V _{1 is} approximately equal to -1.71V.

Illustratively, the above display panel is any one of the display panels provided in FIG. 1 to FIG. 8 of the embodiment of the present invention, and at least two first electrodes in the display panel provided by the embodiment of the present invention are cathode electrodes. In the case where the second electrode is an anode electrode, V ₀ can be preset to a maximum value of ELVDD in a normal case, for example, 4.6 V, and a person skilled in the art can determine the specific value of V ₀ by a limited number of experiments, 4.6 V. merely an example, not to limit the values of V _0, in this case, the above equation may be expressed specifically _{as: V 1 = 4.6-4.6 * F /} 9.8. Then, the display panel may be acquired in S203 touch pressure value as the value of F, substituting into the equation to obtain a value of V _1. For example, when the touch pressure value obtained by the display panel in S203 is 6 Newtons (ie, F=6), V ₁ =4.6-4.6*6/9.8, that is, V _{1 is} approximately equal to 1.78V.

S204. The display panel sets a voltage of the first electrode corresponding to the first display area to the first electrode voltage.

Illustratively, when the display panel is any one of the display panels provided in FIG. 1 to FIG. 8 , the display panel can set the voltage of the first electrode corresponding to the first display area to a first electrode voltage, that is, the first electrode voltage is supplied to a power source connected to the first electrode corresponding to the first display area in the display panel, so that the power source can provide the first electrode corresponding to the first display area One electrode voltage.

S205. The display panel acquires a first grayscale value.

The first grayscale value is a maximum grayscale value of the image data displayed by the first display area.

Optionally, in the embodiment of the present invention, the display panel can obtain the first display area All the grayscale values of the displayed image data, and then the display panel obtains the maximum grayscale value from all the grayscale values of the image data displayed in the first display area.

S206. The display panel determines the first mapping curve according to the first grayscale value.

Optionally, in the embodiment of the present invention, the display panel may determine the first mapping curve according to the maximum grayscale value and the preset mapping curve group, where the mapping curve group includes multiple mapping curves, and the plurality of mapping curves include the first Map the curve. The plurality of mapping curves are a plurality of voltage difference values (the difference between the voltage of ELVDD and the voltage of ELVSS in the display panel), and the mapping relationship between the grayscale value and the luminance value when the display panel performs display.

Specifically, in the embodiment of the present invention, the method for determining the second mapping curve by the display panel according to the maximum grayscale value and the preset mapping curve group may be implemented by using S206a and S206b described below.

S206a. The display panel determines, according to the first grayscale value, a first brightness value corresponding to the first grayscale value.

S206b. The display panel selects, according to the first brightness value, a mapping curve of the maximum brightness value as the first brightness value in the mapping curve group as the first mapping curve.

Optionally, when there is no mapping curve in the mapping curve group with the maximum brightness value being the first brightness value, the mapping curve with the maximum brightness value closest to the maximum brightness value may be selected as the first mapping curve.

Exemplarily, as shown in FIG. 10 , taking the mapping curve 1 and the mapping curve 2 in the preset mapping curve group as an example, it is assumed that the mapping curve 1 is the brightness value and gray of the display panel when the display panel displays the image data. A mapping curve for the relationship of order values. When the first grayscale value obtained by the display panel is 180, firstly, according to the mapping curve 1, when the grayscale value is 180, the corresponding luminance value is 270 nits, and then the maximum luminance value is 270 nit ( That is, the mapping curve 2 of the first luminance value is taken as the first mapping curve. Wherein, when there is no mapping curve with a maximum brightness value of 270 nit in the mapping curve group, a mapping curve with a maximum brightness value closest to 270 nit may be selected as the first mapping curve.

S207. The display panel displays the image data in the first display area according to the first mapping curve.

In the embodiment of the present invention, the display panel in S207 is in the first according to the second mapping curve. The method for displaying the image data in the display area is similar to the method for displaying the image data in the first display area according to the second mapping curve in the above S105. Specifically, the display panel in S207 is displayed in the first display area according to the second mapping curve. For the method of image data, refer to the related description in S105 above, and details are not described herein again.

The display panel control method provided by the embodiment of the present invention can determine at least two regions of the image data displayed on the display panel when the display panel displays the image data, and when the display panel detects the touch applied to the first display region During pressure, the second electrode voltage corresponding to the first display area and the first mapping curve may be acquired, and then the voltage of the first electrode corresponding to the first display area is set as the first electrode voltage, and according to the first mapping curve, The image data is displayed in the first display area, so that the brightness of a certain display area in the display panel can be flexibly controlled independently, thereby further improving the display effect of the display panel.

Optionally, in conjunction with FIG. 11, as shown in FIG. 12, before the display of the image data (specifically before S201 in FIG. 11), the control method of the display panel provided by the embodiment of the present invention further includes:

S301. The display panel determines at least two display areas of the image data to be displayed.

S302. The display panel acquires a second grayscale value.

The second grayscale value is a maximum grayscale value of the image data corresponding to the first display area.

S303. The display panel determines the second electrode voltage and the second mapping curve according to the second grayscale value.

S304. The display panel sets a voltage of the first electrode corresponding to the first display area to the second electrode voltage.

S305. The display panel displays the image data in the first display area according to the second mapping curve.

It should be noted that the second gray scale value of FIG. 12 may be the maximum gray scale value of FIG. 9 , and the second electrode voltage of FIG. 12 may be the electrode voltage of FIG. 9 , and the second mapping curve of FIG. 12 may be used. Is the mapping curve of Figure 9. And in order to avoid repetition, for the description of the above S301-S305, the related description of the above S101-S105 can be specifically referred to. As described, it will not be repeated here.

It should be noted that, in the embodiment of the present invention, before the S201, the display panel display may be controlled by the control method of the display panel shown in the above S301-S305, and the display panel display may be controlled by the control method of the conventional display panel. Specifically, it can be determined according to actual use requirements, and is not limited by the embodiment of the present invention.

According to the control method of the display panel provided by the embodiment of the present invention, the display panel can independently control the display panel to display image data in each display area by using the control method of the display panel shown in S301-S305, and the above-mentioned S301-S305 is used in the display panel. After the image data is displayed in each display area, the display panel can further control the display area of the display panel in detecting the touch pressure according to the control method of the display panel shown in S202-S207 above (for example, The first display area described above displays image data. That is, the control method of the display panel provided by the embodiment of the present invention can independently control the display panel to display image data in each display area, thereby independently controlling the brightness of each display area in the display panel, so that the display effect of the display panel can be improved. Moreover, the control method of the display panel provided by the embodiment of the present invention can also separately control the display panel to display image data in a certain display area (specifically, a display area where the touch pressure is detected), thereby flexibly and independently controlling the display panel. The brightness of a certain area can further improve the display effect of the display panel.

The foregoing method embodiment introduces the solution provided by the embodiment of the present invention from the perspective of the display panel. It can be understood that the display panel includes hardware structures and/or software modules corresponding to each function in order to implement the above functions. Those skilled in the art will readily appreciate that the present invention can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

The embodiment of the present invention may divide a function module on a display device (or a display surface) according to the foregoing method embodiment. For example, each function may be divided according to each function. Modules can also integrate two or more functions into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present invention is schematic, and is only a logical function division, and may be further divided in actual implementation.

Illustratively, a schematic structural diagram of a display device according to an embodiment of the present invention is shown in FIG. 13 in a case where each functional module is divided by a corresponding function. In FIG. 13, the display device includes a determination module 31, an acquisition module 32, a control module 33, and a display module 34.

The determining module 31 is configured to support the display device to execute S101, S103, S201, S203, S206, S301, and S303 executed by the display panel in the foregoing method embodiment. The obtaining module 32 is configured to support the display device to execute S302, S102, S202, S205, and S302 executed by the display panel in the foregoing method embodiment. The control module 33 is configured to support the display device to execute S104, S204, and S304 performed by the display panel in the above method embodiment. The display module 34 is configured to support the display device to execute S105, S207, and S105 executed by the display panel in the above method embodiment.

The above determination module 31, acquisition module 32, control module 33, and display module 34 may also be used to perform other processes of the techniques described herein.

It should be noted that all the related content of the steps involved in the foregoing method embodiments may be referred to the functional descriptions of the corresponding functional modules, and details are not described herein again.

Illustratively, a schematic structural diagram of a display device provided by an embodiment of the present invention is shown in FIG. 14 in the case of an integrated unit. In FIG. 14, the display device includes a processing module 41. The processing module 41 is configured to control and manage the actions of the display device, for example, the steps of the determining module 31, the obtaining module 32, the control module 33, and the display module 34. Further, as shown in FIG. 14, the display device may further include a storage module 42 for storing program codes and data of the display device, the program code including instructions.

Optionally, an embodiment of the present invention provides a display panel (or display device), where the display panel includes a processor and a memory; wherein the memory is used to store an executable program a code, the program code comprising instructions, when the processor executes the instruction, causing a display panel processor to execute a memory-stored computer-executed instruction to cause a display panel to execute a display panel as shown in an embodiment of the present invention Control method (for example, the control method of the display panel as shown in FIGS. 9, 11, and 12).

The processor may be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), and field programmable. A field programmable gate array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor may also be a combination of computing functions, such as one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.

The above memory may include a volatile memory such as a random-access memory (RAM); the memory may also include a non-volatile memory such as a read only memory (read) -only memory, ROM), flash memory, hard disk drive (HDD) or solid-state drive (SSD); the memory may also include a combination of the above types of memory.

Optionally, an embodiment of the present invention provides a computer readable storage medium, where the computer readable storage medium stores one or more programs, and the one or more programs include computer execution instructions when the display panel (or display device) When the processor executes the computer to execute an instruction, the display panel performs a control method of the display panel (for example, a control method of the display panel as shown in FIGS. 9, 11 and 12).

In the control method of the display panel provided by the embodiment of the present invention, if the function of the display panel is implemented in the form of a software function unit and sold or used as a separate product, it may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium. , including a number of instructions to make a computer set The device (which may be a personal computer, server, or network device, etc.) or processor performs all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a flash memory, a mobile hard disk, a read only memory, a random access memory, a magnetic disk, or an optical disk, and the like, which can store program codes.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

A display panel includes a first conductive layer, an organic electroluminescent layer and a second conductive layer, wherein

The first conductive layer includes at least two first electrodes, the second conductive layer includes a second electrode, and the at least two first electrodes respectively correspond to at least two display areas of the display panel, the at least two Each of the first electrodes is connected to a power source, wherein each of the first electrodes is connected to a different power source.
The display panel according to claim 1, wherein the display panel further comprises a substrate, wherein a signal line connecting each of the first electrodes and the power source is disposed on the substrate; the signal line passes through the via and the The first electrode is connected.
The display panel of claim 1 , wherein the display panel further comprises a pressure sensing touch layer, wherein each of the first electrodes is connected to the power source and the signal line is disposed on the pressure sensing touch layer; The signal line is connected to the first electrode through a via.
A display panel according to any one of claims 1 to 3, characterized in that

The at least two first electrodes are cathode electrodes, and the second electrode is an anode electrode;

or,

The at least two first electrodes are anode electrodes and the second electrode is a cathode electrode.
A display device comprising the display panel according to any one of claims 1 to 4.
A control method for a display panel, comprising:

Before displaying the image data, determining at least two display areas of the image data to be displayed, the at least two display areas respectively corresponding to at least two first electrodes in the display panel;

Obtaining a maximum grayscale value of the image data corresponding to the first display area, where the first display area is one of the at least two display areas;

Determining an electrode voltage and a mapping curve according to the maximum grayscale value;

Setting a voltage of the first electrode corresponding to the first display area to the electrode voltage;

Image data is displayed in the first display area according to the mapping curve.
A control method for a display panel, comprising:

Determining at least two display areas of the image data displayed on the display panel when the image data is displayed, the at least two display areas respectively corresponding to at least two first electrodes in the display panel;

Obtaining a touch pressure value of the touch pressure when the touch pressure is applied to the first display area, the first display area being one of the at least two display areas;

Determining a first electrode voltage according to the touch pressure value;

Setting a voltage of the first electrode corresponding to the first display area to the first electrode voltage;

Obtaining a first grayscale value, where the first grayscale value is a maximum grayscale value of the image data displayed by the first display area;

Determining, according to the first grayscale value, a first mapping curve;

And displaying image data in the first display area according to the first mapping curve.
The control method according to claim 7, further comprising:

Before displaying the image data, determining at least two display areas of the image data to be displayed on the display panel, the at least two display areas respectively corresponding to at least two first electrodes in the display panel;

Obtaining a second grayscale value, where the second grayscale value is a maximum grayscale value of the image data corresponding to the first display area, where the first display area is one of the at least two display areas;

Determining, according to the second grayscale value, a second electrode voltage and a second mapping curve;

Setting a voltage of the first electrode of the first display area to the second electrode voltage;

And displaying image data in the first display area according to the second mapping curve.
A display device, comprising: a determining module, an obtaining module, a control module, and a display module; wherein

The determining module is configured to determine at least two display areas of the image data to be displayed before displaying the image data, where the at least two display areas respectively correspond to the display At least two first electrodes in the device;

The acquiring module is configured to acquire a maximum grayscale value of the image data corresponding to the first display area, where the first display area is one of the at least two display areas;

The determining module is further configured to determine an electrode voltage and a mapping curve according to the maximum grayscale value acquired by the acquiring module;

The control module is configured to set a voltage of the first electrode corresponding to the first display area to the electrode voltage determined by the determining module;

The display module is configured to display image data in the first display area according to the mapping curve determined by the determining module.
A display device, comprising: a determining module, an obtaining module, a control module, and a display module; wherein

a determining module, configured to determine at least two display areas of the image data displayed on the display panel when the image data is displayed, wherein the at least two display areas respectively correspond to at least two first electrodes in the display device;

An acquiring module, configured to acquire a touch pressure value of the touch pressure when detecting a touch pressure applied to the first display area, where the first display area is one of the at least two display areas region;

The determining module is further configured to determine a first electrode voltage according to the touch pressure value acquired by the acquiring module;

The control module is configured to set a voltage of the first electrode corresponding to the first display area to the first electrode voltage determined by the determining module;

The acquiring module is further configured to acquire a first grayscale value, where the first grayscale value is a maximum grayscale value of the image data displayed by the first display area;

The determining module is further configured to determine a first mapping curve according to the first grayscale value acquired by the acquiring module;

The display module is configured to display image data in the first display area according to the first mapping curve determined by the determining module.
A display device according to claim 10, wherein

The determining module is further configured to: before displaying the image data, determine at least two display areas to be displayed on the display device, where the at least two display areas respectively correspond to at least two of the display devices Two first electrodes;

The acquiring module is further configured to obtain a second grayscale value, where the second grayscale value is a maximum grayscale value of the image data corresponding to the first display area, and the first display area is the at least two a display area in the display area;

The determining module is further configured to determine a second electrode voltage and a second mapping curve according to the second grayscale value acquired by the acquiring module;

The control module is further configured to set a voltage of the first electrode corresponding to the first display area to the second electrode voltage;

The display module is further configured to display image data in the first display area according to the second mapping curve determined by the determining module.